Home / 28,184.95-38,895.15-15,609.70

Finding the Fourth Proportional to 28,184.95, 38,895.15 and 15,609.70

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Solution

The fourth proportional to 28,184.95, 38,895.15 and 15,609.70 is: 21,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,184.95 : 38,895.15 = 15,609.70 : x
  2. Step 2: Convert to fraction form
    28,184.95/38,895.15 = 15,609.70/x
  3. Step 3: Cross multiply
    28,184.95x = 38,895.15 × 15,609.70
  4. Step 4: Simplify right side
    28,184.95x = 607,141,622.96
  5. Step 5: Solve for x
    x = 607,141,622.96/28,184.95
  6. Step 6: Final answer
    x = 21,541.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.